Contingency degradation overwrites initial learning and depends on lateral orbitofrontal cortex
Mahmoudi, M.; Gladding, J.; Kendig, M. D.; Castorina, A.; Turner, K.; Soegyono, O.; Bradfield, L. A.
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Relapse after treatment for various mental health disorders has been linked to tendency for reductions in responding to increase over time or following re-exposure to motivating stimuli. Here we show that, in rats, responding reduced through non-contingent outcome delivery does not recover in these ways, and that this learning depends on an intact lateral orbitofrontal cortex. These findings suggest that contingency degradation overwrites original learning which may support the development of relapse-resistant behavioural interventions.
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